Which of the Following Statements Best Summarizes Current Evidence Concerning

question 42

Multiple Choice

Which of the following statements best summarizes current evidence concerning dark matter in individual galaxies and in clusters of galaxies?

• A)Dark matter is the dominant form of mass in both clusters and in individual galaxies.
• B)Dark matter is present between galaxies in clusters,but not within individual galaxies.
• C)Dark matter is present in individual galaxies,but there is no evidence that it can exist between the galaxies in a cluster.
• D)Within individual galaxies,dark matter is always concentrated near the galactic center,and within clusters it is always concentrated near the cluster center.

---

Definitions:

Sensory Registers

Memory systems that temporarily hold incoming sensory information from the environment until it can be processed.

Visual Sensation

The immediate response of the visual sensory system to stimuli, involving the eyes perceiving light, shapes, colors, and motion.

Ebbinghaus's Studies

Research conducted by Hermann Ebbinghaus that focused on the decay of memory over time, famously resulting in the forgetting curve concept.

Mental Institutions

Facilities specifically designed for the treatment and care of individuals with mental disorders.